| 1601 | Tristar Energy Corporation | Casper, WY 82602 | Oil & Gas Operator | Dec 2007 |
| 1602 | Tristar Exploration, Inc | Pflugerville, TX 78660 | Oil & Gas Operator | Sep 2026 |
| 1603 | Tristar Oil & Gas | Freer, TX 78357 | Oil & Gas Operator | Sep 2026 |
| 1604 | Tristar Petroleum Resourc | Woodland Hills, CA 89101 | Oil & Gas Operator | Dec 1991 |
| 1605 | Tristate Nla, LLC | | Oil Operator | Dec 2024 |
| 1606 | Tritex Production Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Jan 2013 |
| 1607 | Tritex Resc Inco | | Oil Operator | Dec 1985 |
| 1608 | Tritex Resources, L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2009 |
| 1609 | Triton Energy LLC | Wortham, TX 76693 | Oil & Gas Operator | Sep 2026 |
| 1610 | Triton Oil & Gas Corp. | Houston, TX 77002 | Oil & Gas Operator | Nov 2014 |
| 1611 | Triton Operating LLC | Wichita Falls, TX 76310 | Oil & Gas Operator | Sep 2026 |
| 1612 | Trittipo, J. L. | | Oil & Gas Operator | Nov 1997 |
| 1613 | Trium, LTD. | Laredo, TX 78041 | Oil Operator | Sep 2026 |
| 1614 | Triumph Energy Inc | Lafayette, LA 70505 | Oil & Gas Operator | Nov 2015 |
| 1615 | Triumph Energy Inc-P B Berry | | Oil & Gas Operator | Jun 1986 |
| 1616 | Triumph Energy Partners LLC | Oklahoma City, OK 73102-5804 | Oil & Gas Operator | Jun 2026 |
| 1617 | Triumph Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 1618 | Triumph Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Jun 1994 |
| 1619 | Triumph Resources Inc | Oklahoma City, OK 73114 | Oil & Gas Operator | Nov 2004 |
| 1620 | Triunited Investors, LLC | Monte Sereno, CA 95030 | Oil Operator | May 2012 |
| 1621 | Trivestco Energy Company | Ponca City, OK 74601 | Oil & Gas Operator | Jul 2026 |
| 1622 | Trivista Operating LLC | Giddings, TX 78942 | Oil & Gas Operator | Sep 2026 |
| 1623 | Trivium Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Sep 2026 |
| 1624 | Trojan Oil And Gas | White Deer, TX 79097 | Oil & Gas Operator | Dec 1994 |
| 1625 | Trojan Oil Company, LLC | Big Lake, TX 76932 | Oil Operator | Sep 2026 |
| 1626 | Trojan Resources LLC | Sapulpa, OK 74066-8095 | Oil Operator | Jun 2026 |
| 1627 | Trolz Glynn And Associates Inc | | Oil & Gas Operator | Apr 1995 |
| 1628 | Troubadour Operating, LLC | Houston, TX 77019 | Oil & Gas Operator | Sep 2026 |
| 1629 | Trout Disposal Well Inc | Hammon, OK 73650 | Oil & Gas Operator | Jan 2025 |
| 1630 | Trout Kye Jr | | Oil & Gas Operator | Dec 2010 |
| 1631 | Trout Oil Company, Inc. | Afton, OK 74331 | Oil & Gas Operator | Sep 2026 |
| 1632 | Troy E. Boyd | | Oil Operator | Oct 1998 |
| 1633 | Troy Energy Operating LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jun 2026 |
| 1634 | Troy Jaco, Inc. | Sherman, TX 75091 | Oil Operator | Dec 2018 |
| 1635 | Troy Resources C | | Oil Operator | Jun 1990 |
| 1636 | Troyer Energies Inc | Waterford, PA 16441-2809 | Gas Operator | Dec 2025 |
| 1637 | Troyer Gas & Oil | Waterford, PA 16441-2843 | Gas Operator | Dec 2001 |
| 1638 | Troyer Howard E | Tulsa, OK 74133-8016 | Oil & Gas Operator | Dec 2014 |
| 1639 | Troyer, Marvin | Clymer, NY 14724 | Gas Operator | Dec 2025 |
| 1640 | Troyer, Walter, Jr. | Clymer, NY 14724 | Gas Operator | Dec 2025 |
| 1641 | Troyer, Wayne A. | Galva, KS 67443 | Oil Operator | Jun 1997 |
| 1642 | Troyer, William W. | Clymer, NY 14724 | Gas Operator | Dec 2025 |
| 1643 | TRP Operating LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2026 |
| 1644 | TRP-Ok Properties LLC | Norman, OK 73072 | Oil & Gas Operator | Jul 2026 |
| 1645 | Tru Operating LLC | Denton, TX 76201 | Oil & Gas Operator | Apr 2023 |
| 1646 | Truckers Disposal Inc | Skiatook, OK 74070 | Oil & Gas Operator | Jul 2026 |
| 1647 | True Oil Company | Casper, WY 82602 | Oil & Gas Operator | Aug 2003 |
| 1648 | True Oil Company LLC | Midland, TX 79701 | Oil & Gas Operator | Mar 2016 |
| 1649 | True Oil LLC | Casper, WY 82602 | Oil & Gas Operator | Jul 2026 |
| 1650 | True Performance Administrators LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Sep 2025 |
| 1651 | True Wolf Operating, LLC | Iowa Park, TX 76367 | Oil Operator | Oct 2025 |
| 1652 | Trueblood Resources, Inc. | Denver, CO 80222 | Oil & Gas Operator | Sep 2026 |
| 1653 | Truevine Gas Company | Ada, OK 74821-1422 | Oil & Gas Operator | Jun 2026 |
| 1654 | Truevine Operating LLC | Ada, OK 74820 | Oil & Gas Operator | Jun 2026 |
| 1655 | Truluck Enterprises LLC | Wichita Falls, TX 76308-4454 | Oil & Gas Operator | Apr 2015 |
| 1656 | Trumart Oil Comp | | Oil Operator | May 1990 |
| 1657 | Trumart Oil Company | Ellis, KS 67637 | Oil Operator | Dec 2000 |
| 1658 | Trumbull Resources | Mineral Ridge, OH 44440 | Oil & Gas Operator | Dec 2016 |
| 1659 | Trump Energy | Austin, TX 78734 | Oil & Gas Operator | Mar 2008 |
| 1660 | Trumter Petroleum Corporation | Fort Worth, TX 76185 | Oil & Gas Operator | Aug 1998 |
| 1661 | Trunkline Gas Company | | Oil Operator | Mar 2008 |
| 1662 | Trust Oil Co. | Pine, CO 80470 | Oil & Gas Operator | Sep 2026 |
| 1663 | Trustar Operating Company Inc. | Austin, TX 78750 | Oil Operator | Sep 2026 |
| 1664 | Trutex Operating, LLC | Haltom City, TX 76117 | Oil & Gas Operator | Sep 2026 |
| 1665 | Tryall, Inc | Porter, TX 77365 | Oil & Gas Operator | Sep 2026 |
| 1666 | Tryco Exploration, LLC | Plano, TX 75026 | Oil & Gas Operator | Nov 2006 |
| 1667 | Tryma Operating | Borger, TX 79008 | Oil & Gas Operator | Sep 2026 |
| 1668 | Tryvest, Inc. | | Oil & Gas Operator | Sep 1991 |
| 1669 | TS & T Drilling, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2016 |
| 1670 | TS Leasing Operations Inc. | | Oil & Gas Operator | Jul 2026 |
| 1671 | TS Oil, LLC | River Oaks, TX 76114 | Oil & Gas Operator | Sep 2026 |
| 1672 | Tsar Energy, LLC | Dallas, TX 75209 | Oil & Gas Operator | Sep 2026 |
| 1673 | Tsar Operating Company | Fort Worth, TX 76116 | Oil & Gas Operator | Jul 2021 |
| 1674 | Tschoepe, Arthur J. | Leakey, TX 78873 | Oil & Gas Operator | Jun 2001 |
| 1675 | TSF Operating | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 1676 | Tsoco | Tuleta, TX 78162 | Oil & Gas Operator | Apr 2017 |
| 1677 | Tsoco & W. M. Null | Pettus, TX 78146 | Oil & Gas Operator | Aug 2002 |
| 1678 | TSW Oil & Gas, LLC | Abilene, TX 79602 | Oil & Gas Operator | Jan 2016 |
| 1679 | TT Operating, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2026 |
| 1680 | TTK Energy LLC | Kilgore, TX 75663 | Oil Operator | Sep 2026 |
| 1681 | TTL Energy Resources, Inc. | Borger, TX 79008 | Oil & Gas Operator | Aug 2013 |
| 1682 | Tubbs Patrick | Neodesha, KS 66757 | Oil Operator | Sep 2008 |
| 1683 | Tuckco Petroleum Corporation | Andrews, TX 79714 | Oil & Gas Operator | Feb 2026 |
| 1684 | Tucker Drilling Company, Inc. | San Angelo, TX 76903 | Oil & Gas Operator | Jul 1996 |
| 1685 | Tucker Gary & Deedee | Jennings, OK 74038 | Oil & Gas Operator | Jan 2026 |
| 1686 | Tucker Operating Co., Inc. | Victoria, TX 77903 | Oil & Gas Operator | Sep 2026 |
| 1687 | Tucker Petroleum, Inc. | Corpus Chrsti, TX 78468 | Oil & Gas Operator | Sep 2026 |
| 1688 | Tucker Resources, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2003 |
| 1689 | Tucker Ron & Co | Norman, OK 73069-8511 | Gas Operator | Sep 2017 |
| 1690 | Tucker, Carl H., Jr. | Independence, KS 67301 | Oil Operator | Jul 1996 |
| 1691 | Tucker, Gene | | Oil & Gas Operator | Dec 2011 |
| 1692 | Tucker, Stephen A. | Independence, KS 67301 | Oil Operator | Feb 2009 |
| 1693 | Tucker, Timothy R | | Oil Operator | Jun 2026 |
| 1694 | Tucson Oil & Gas Inc | | Oil & Gas Operator | Aug 1994 |
| 1695 | Tudex Petroleum Inc | | Oil & Gas Operator | Sep 2019 |
| 1696 | Tug Fork Development | Catlettsburg, KY 41129 | Gas Operator | Dec 2021 |
| 1697 | Tug Hill Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2021 |
| 1698 | Tug Oil & Gas, L.L.C. | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2026 |
| 1699 | Tularosa Operating Company | Kerrville, TX 78029 | Oil & Gas Operator | Mar 2024 |
| 1700 | Tuleta Energy Partners, LLC | Norman, OK 73072 | Oil & Gas Operator | Sep 2026 |